Tack-puller.



J. D. HATCH.-

vTACK FULLER.

APPLICATION FILED APR.13, x911.

Patented Feb. 26", 1918..

vi sans i. a n ce,

JACOB JD. HATCH, OF BROOKTON, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO THOMAS BOSTOCK, GEORGE IBOSTOCK, AND JAMES BOSTOCK, DOING BUSINESS "UNDER THE FIRM-NAME AND STYLE OF THOMAS BOSTOCK 85 SONS, OF BBOCKTON, MASSACHU- SETTS.

TACK-FULLER.

To all whom it may concern:

Be it known that 1, Jason D. HATCH, a citizen of the United States, residing at Brockton, in the county of Plymouth and State of Massachusetts, have invented new and useful Improvements in Tack-Pullers, of which the following is a specification.

This invention relates to machines for pulling lasting-tacks from lasted shoe uppers after the lasting operation, the heads of the tacks prOjeCting sufficiently from the portions of the upper secured thereby to permit said heads to be engaged and withdrawn by a revolving claw, forming an element of a machine to which the lasted upper is presented by. the hands of a workman.

The invention has for its object to provide an improved tack-puller or pulling machine, adapted to rapidly and efficiently remove tacks from a lasted upper.

The invention also has for its object to prevent the pulled tacks from flying loosely about during the pulling operation.

The invention is embodied in the improvements which ll will now proceed to describe and claim.

Of the accompanying drawings forming a part ofthis specificatiom Figure 1 is a side elevation of a tackpulling machine embodying the invention.

Fig. 2 is an enlargement of a portion of Fig. 1, parts being broken away and shown in section. V

Fig. 3 is a section on line 33 ofFig. 2.

Fig. 4 is an enlargement of a portion of Fig. 3.

Fig. 5 is a perspective view of the tackpulling element shown by Fig. 3.

Fig. 6 is a plan view of the blank from which the tack-pulling element is formed.

Fig. 7 is a view similar to a portion of Fig. 6, illustrating a modification.

Fig. 8 is a fragmentary perspective view, further illustrating the modification shown by Fig. 7.

The same reference characters indicate the same parts in all of the figures.

In the drawings, 12 represents a fixed bearing forming a part of a supporting frame, which may be constructed to rest on a bench or table, or upon a floor. In the latter case theheight of the frame will be considerably greater, 'ofcourse, than when Specification of Letters Patent.

Application filed Apri1'13, 1917.

Patented Feb. 26, 1%16...

Serial No. 161,?11.

the frame rests upon a bench, it being the usual practice to support the tack-pulling element hereinafter described about breast high, relatively, to a workman in a standing position.

Journaled in the bearing 12 is a shaft 13 which may be driven by the belt running on a pulley lt attached to the shaft. As shown by Fig. 1, the shaft may be provided with a loose pulley 15 and with a balance-wheel 16.

17 represent a flange cast with, or otherwise rigidly attached to the bearing 13, and forming a continuation thereof, the shaft 13 projecting through said flange, its projecting end portion being screwthreaded, or otherwise adapted to be attached as hereinafter described, to a tack-pulling element revolved by the shaft.

The preferred construction of the tack pulling element is as represented by Figs. 3, 5, and 6, in which 18 represents a hub having an aperture 18 formed to receive the projecting end portion of the shaft 13.- On opposite edge portions of the hub 18 and rigidly attached thereto are laterally projecting arms 19, each provided with a curved ear 20 having a slot or recess 21, one

end of which is pointed or V-shaped and adapted to engage a head of a lasting tack T projecting from a lasted upper. The hub 18 is rigidly attached to the shaft 13 by suitable means, such as a clamping-nut 22 engaged with the threaded end of the shaft and seated on the outer side of the hub. As shown by Fig. 5, the hub may be reinforced by a block 28 having an aperture 24 to receive the shaft, the outer side of said block forming a seat for the nut 22.. If desired, however, the reinforcing block may be omitted and the nut may be seated directly on the hub 18.

The hub 18, arms 19, and ears 20 are preferably integral with each other and formed from a blank shaped as shown by Fig. 6, the arms 19 being bent at rightangles to the hub 18, and the cars 20 curved or rolled as indicated by Figs. 3, 4t, and '5. The ears thus formed constitute tack-engaging claws having rounded externally convex outer surfaces adapted to move in contact with the upper leather without injuring the same. Said claws are offset from the axis of the shaft, as shown by Figs. 1, 2, 3, and-5, and

55 r which the pulled tacks drop from the claws,

, path, it is engaged by one of the claws.

Associated with the tack-pulling element abovedescribed is a hood 25, preferably of sheet. metal, formed to surround said ele ment,- One funetion of the hood is to support the lasted upper during the tack pulling'operation, and another is to prevent the pulled tacks from being thrown loosely about and causing damage;

The hood is provided with an elongated tack-receiving opening26, which is preferably an elongated relatively narrow slot, pointed at both ends, the longitudinal. axis of the slot coinciding with the path in which i the tack-engaging edges of the claws re volve. The portion of the hood in which the opening 26 is formed constitutes a rest,

which faces in a downward direction and supports the lasted upper against upward pressure exerted thereon by the workman. As shown by Figs. 3 and 1, said rest portion and the major axis of the elongated opening 26, are eccentric to the path of the claws, so that each claw as it approaches said slot, while moving in the direction indicated by the arrow in Fig. 1, comes in close proximity to, and'almost in rubbing contact with the inner surface of the hood when first engaging the tack, and then recedes from the inner surface of the hood while pulling the tack endwise, as indicated by dotted lines in Fig. 4. u The pull exerted by the clawon the tack is supported by the rest portion of the hood, and the bottom portion of the lasted upper, which may occupy the position indicated by the line mw when the tack is first engaged, may swing slightly to occupy the position indicated by the line y y while the tack is being pulled. The ends of the opening 26. do not come in contact with the tacks. V

The internal perimeter of the hood is diversified to form a depressed portion 28 into and from which they escape through a slot or tack outlet 29, the depressed portion 28 being outside of the path of the claws.

The perimeter of the flange 17' is diversified-to conform accurately to the internal per meter ofhe h d, o h th ge not 7 only forms a closed inner wall or head, but

ls f rm a s t for he inner end f the hood body, said body being detachably secured to the flange by suitable means such as screws 30 entering slots 31 in the inner end of the hood.

The outer end of the hood body constitutes a sight opening through which the workman may observe the action of the claws, said outer end being preferably inclined, as shown by Figs. 1 and 2, for the convenience of the workman.

To prevent tacks from being thrown outwardly through the outer end of the hood, a transparent head 32 of mica, or other suitable material, may be attached to the hood, as indicated by Fig. 2.

I claim 1. In a tack-puller, in combination, a shaft rotatable in a fixed bearing, a tackengaging claw attached to said shaft and offset from the axis thereof so that the claw is revoluble in a circular path, and a fixed curved shoe rest eccentric to the path of the claw, and provided with an elongated tackreceiving opening, the major axis of which is eccentric to said path, a portion of said opening being in close proximity to the path of the claw, to permit a tack projecting from a lasted shoe held against said rest, to enter said path and be engaged by the claw, the eccentric arrangement of the rest causing the claw to recede from the rest after engaging the tack, and pull the latter endwise through said opening.

2. In a tackpuller, in combination, a shaft rotatable in a fixed bearing, a tackcngaging claw attached to said shaft and offset from the axis thereof, so that the claw is revoluble in a circular path, and a fixed curved shoe rest eccentric to the path of the claw, and provided with a tack-receiving opening, the major axis of which is cocentric to said path, a portion of said Opening being in close proximity to the path of the claw, to permit a tack projecting from a lasted shoe held against said rest, to enter said path and be engaged by the claw, the eccentric arrangement of the rest causing the claw to recede from the rest after engaging the tack, and pull the latter endwis'e through said opening, the claw being provided with a rounded externally convex outer face adapted to move in contact with upper leather without injuring the same.

'3. In a tack-puller, in combination, a shaft rotatable in a fixed bearing, a tackengaging claw attached to said shaft and offset from the axis thereof, so that the claw is. revoluble in a circular path, and a fixed hood surrounding the claw and having a shoe rest portion which is eccentric to the path of the claw, and is provided with a tack-receiving opening, and with a depressed portion, arranged to receive pulled tacks and provided with a tack outlet, said hood being adapted to arrest tacks thrown radially outward in any direction by the claw, and guide the arrested tacks to said depressed portion and outlet.

4. In a tack-puller, in combination, a shaft rotatable in a fixed bearing, a revoluble tack-engaging claw attached to said shaft and offset from the axis thereof, so

that the claw is revoluble in a circular path, and a fixed hood surrounding the claw and having a shoe rest portion which is eccentric to the path of the claw, and is provided with a tack-receiving opening, and with a depressed portion, arranged to receive pulled tacks and provided with a tack outlet, said hood being formed to arrest tacks thrown radially outward in any direction by the claw, and guide the arrested tacks to said depressed portion and outlet, one end of said hood being inclined and constituting a sight opening.

5. In a tack-puller, in combination, a revoluble tack-engaging claw, and a fixed hood surrounding the claw and having a shoe rest portion which is eccentric to the path of the claw, and is provided with a tack-receiving opening, and with a depressed port-ion, arranged to receive pulled tacks and provided with a tack outlet, said hood comprising a tubular body open at one end, to provide a sight opening, and a transparent head preventing the escape of tacks through said opening.

6. In a tack-puller, in combination, a

supporting frame having a bearing and a fixed flange surrounding said bearing, a shaft journaled in the bearing and projecting through said flange, a hub attached to the shaft and provided with one or more tack-pulling claws, and a fixed hood detachably secured to said flange and formed to surround said head and claws, said hood having a shoe rest portion provided with a tack-receiving opening, and a depressed portion arranged to receive pulled tacks and provided with a tack outlet.

7. In a tack-puller, in combination, a supporting frame having a bearing and a fixed flange surrounding said bearing, a shaft journaled in the bearing and projecting through said flange, a hub attached to the shaft and provided with one or more tackpulling claws, and a fixed hood detachably secured to said flange and formed to surf round said head and claws, said hood having a shoe rest portion which is eccentric to the path of the claws and is provided with a tack-receiving opening, and a depressed portion arranged to receive pulled tacks and provided with a tack outlet, the perimeter of said flange being conformed to the internal surface of the hood.

In testimony whereof I have aflixed my signature.

JACOB n. HATCH.

(topics or this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

ashington, D. G. 

